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https://www.readbyqxmd.com/read/28941350/evaluation-of-analytical-performance-of-a-new-high-sensitivity-immunoassay-for-cardiac-troponin-i
#1
Silvia Masotti, Concetta Prontera, Veronica Musetti, Simona Storti, Rudina Ndreu, Gian Carlo Zucchelli, Claudio Passino, Aldo Clerico
BACKGROUND: The study aim was to evaluate and compare the analytical performance of the new chemiluminescent immunoassay for cardiac troponin I (cTnI), called Access hs-TnI using DxI platform, with those of Access AccuTnI+3 method, and high-sensitivity (hs) cTnI method for ARCHITECT platform. METHODS: The limits of blank (LoB), detection (LoD) and quantitation (LoQ) at 10% and 20% CV were evaluated according to international standardized protocols. For the evaluation of analytical performance and comparison of cTnI results, both heparinized plasma samples, collected from healthy subjects and patients with cardiac diseases, and quality control samples distributed in external quality assessment programs were used...
September 23, 2017: Clinical Chemistry and Laboratory Medicine: CCLM
https://www.readbyqxmd.com/read/28938632/the-%C3%AE-secretase-inhibitors-enhance-the-anti-leukemic-activity-of-ibrutinib-in-b-cll-cells
#2
Paola Secchiero, Rebecca Voltan, Erika Rimondi, Elisabetta Melloni, Emmanouil Athanasakis, Veronica Tisato, Stefania Gallo, Gian Matteo Rigolin, Giorgio Zauli
Ibrutinib blocks B-cell receptor signaling and interferes with leukemic cell-to-microenvironment interactions. Ibrutinib plays a key role in the management of B-CLL and is recommended for first line treatment of high-risk CLL patients with 17p deletion. Therefore, elucidating the factors governing sensitivity/resistance to Ibrutinib represents a relevant issue. For this purpose, in 3 B-CLL patient samples harboring functional TP53 mutations, the frequency of the mutated clones was monitored during in vivo Ibrutinib therapy, revealing a progressive decline of the frequency of TP53(mut) clones during 12 months of treatment...
August 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/28938627/prostate-tumor-overexpressed-1-ptov1-promotes-docetaxel-resistance-and-survival-of-castration-resistant-prostate-cancer-cells
#3
Verónica Cánovas, Yolanda Puñal, Valentina Maggio, Enric Redondo, Mercedes Marín, Begoña Mellado, Mireia Olivan, Matilde Lleonart, Jacques Planas, Juan Morote, Rosanna Paciucci
Metastatic prostate cancer is presently incurable. The oncogenic protein PTOV1, first described in prostate cancer, was reported as overexpressed and significantly correlated with poor survival in numerous tumors. Here, we investigated the role of PTOV1 in prostate cancer survival to docetaxel and self-renewal ability. Transduction of PTOV1 in docetaxel-sensitive Du145 and PC3 cells significantly increased cell survival after docetaxel exposure and induced docetaxel-resistance genes expression (ABCB1, CCNG2 and TUBB2B)...
August 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/28938125/selective-immuno-modulatory-effect-of-prolactin-upon-pro-inflammatory-response-in-human-fetal-membranes
#4
Pilar Flores-Espinosa, Eduardo Preciado-Martínez, Araceli Mejía-Salvador, Gabriela Sedano-González, Luisa Bermejo-Martínez, Adalberto Parra-Covarruvias, Guadalupe Estrada-Gutiérrez, Rodrigo Vega-Sánchez, Isabel Méndez, Braulio Quesada-Reyna, Andrea Olmos-Ortiz, Veronica Zaga-Clavellina
During pregnancy, prolactin (PRL) is a neuro-immuno-cytokine that contributes actively to the crosstalk between the immune and endocrine systems and, thus, to the creation of an immune-privileged milieu. This work aims to analyze the capacity of PRL to modulate the synthesis and secretion of pro-inflammatory markers associated with labor. Studies were conducted using human fetal membranes at term mounted in a model of two independent chambers. The choriodecidual region was stimulated with 500-ng/mL lipopolysaccharide (LPS), and the amnion and choriodecidual region were co-simulated with different concentrations of PRL that can arise during pregnancy: 250, 500, 1000, and 4000ng/mL...
September 14, 2017: Journal of Reproductive Immunology
https://www.readbyqxmd.com/read/28937680/salinomycin-kills-cancer-stem-cells-by-sequestering-iron-in-lysosomes
#5
Trang Thi Mai, Ahmed Hamaï, Antje Hienzsch, Tatiana Cañeque, Sebastian Müller, Julien Wicinski, Olivier Cabaud, Christine Leroy, Amandine David, Verónica Acevedo, Akihide Ryo, Christophe Ginestier, Daniel Birnbaum, Emmanuelle Charafe-Jauffret, Patrice Codogno, Maryam Mehrpour, Raphaël Rodriguez
Cancer stem cells (CSCs) represent a subset of cells within tumours that exhibit self-renewal properties and the capacity to seed tumours. CSCs are typically refractory to conventional treatments and have been associated to metastasis and relapse. Salinomycin operates as a selective agent against CSCs through mechanisms that remain elusive. Here, we provide evidence that a synthetic derivative of salinomycin, which we named ironomycin (AM5), exhibits a more potent and selective activity against breast CSCs in vitro and in vivo, by accumulating and sequestering iron in lysosomes...
October 2017: Nature Chemistry
https://www.readbyqxmd.com/read/28937339/locked-out
#6
Veronica Johansson, Surjo R Soekadar, Jens Clausen
Brain-computer interfaces (BCIs) can enable communication for persons in severe paralysis including locked-in syndrome (LIS); that is, being unable to move or speak while aware. In cases of complete loss of muscle control, termed "complete locked-in syndrome," a BCI may be the only viable solution to restore communication. However, a widespread ignorance regarding quality of life in LIS, current BCIs, and their potential as an assistive technology for persons in LIS, needlessly causes a harmful situation for this cohort...
October 2017: Cambridge Quarterly of Healthcare Ethics: CQ: the International Journal of Healthcare Ethics Committees
https://www.readbyqxmd.com/read/28936160/the-energy-metabolism-dysfunction-in-psychiatric-disorders-postmortem-brains-focus-on-proteomic-evidence
#7
REVIEW
Giuliana S Zuccoli, Verônica M Saia-Cereda, Juliana M Nascimento, Daniel Martins-de-Souza
Psychiatric disorders represent a great medical and social challenge and people suffering from these conditions face many impairments regarding personal and professional life. In addition, a mental disorder will manifest itself in approximately one quarter of the world's population at some period of their life. Dysfunction in energy metabolism is one of the most consistent scientific findings associated with these disorders. With this is mind, this review compiled data on disturbances in energy metabolism found by proteomic analyses of postmortem brains collected from patients affected by the most prevalent psychiatric disorders: schizophrenia (SCZ), bipolar disorder (BPD), and major depressive disorder (MDD)...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28936132/architectural-style-and-green-spaces-predict-older-adults-evaluations-of-residential-facilities
#8
Veronica Cerina, Ferdinando Fornara, Sara Manca
The purpose of this study was to analyse the effects of residential facilities' design features on older adults' psychosocial responses. Participants (N = 192) were over 65-year-old residents who were randomly exposed to different experimental scenarios concerning a hypothetical residential facility for older adults, using a 3 × 2 between-subjects design (i.e. home-like vs. hotel-like vs. usual-standard architectural style; presence vs. absence of green spaces). After the experimental session, participants were asked to fill in a questionnaire that measured their attitudes towards short- and long-term relocation, anticipated residential satisfaction with the facility, and feelings of broken home attachment...
September 2017: European Journal of Ageing
https://www.readbyqxmd.com/read/28935589/early-postnatal-exposure-to-endosulfan-interferes-with-the-normal-development-of-the-male-rat-mammary-gland
#9
Gabriela A Altamirano, Melisa B Delconte, Ayelen L Gomez, Ramiro Alarcón, Verónica L Bosquiazzo, Enrique H Luque, Mónica Muñoz-de-Toro, Laura Kass
Our aim was to evaluate whether postnatal exposure to endosulfan (ENDO) modifies mammary gland (MG) development in pre- and post-pubertal male rats. From postnatal day 1 (PND1) to PND7, male rats were injected subcutaneously every 48h with either corn oil (vehicle) or 600μg ENDO/kg.bw. On PND21 and PND60, MG and blood samples were collected. Estradiol (E2) and testosterone (T) serum levels, MG histology, collagen fiber organization, proliferation index, and estrogen (ESR1) and androgen receptor (AR) expressions were evaluated...
September 18, 2017: Toxicology Letters
https://www.readbyqxmd.com/read/28935462/insulin-resistance-serum-uric-acid-and-metabolic-syndrome-are-linked-to-cardiovascular-dysfunction-in-pediatric-obesity
#10
Giulia Genoni, Veronica Menegon, Gioel Gabrio Secco, Michela Sonzini, Massimiliano Martelli, Matteo Castagno, Roberta Ricotti, Alice Monzani, Michele Aronici, Elena Grossini, Carlo Di Mario, Gianni Bona, Simonetta Bellone, Flavia Prodam
INTRODUCTION: Childhood obesity is associated with cardiovascular abnormalities but little is known on the potential correlation between early cardiovascular and metabolic alterations. AIM: Aims of this study were 1) to evaluate early cardiovascular abnormalities in a large population of obese children and adolescents compared with a normal weight counterpart, 2) to investigate their potential association with insulin resistance (IR), serum uric acid (sUA) and metabolic syndrome (MetS)...
September 14, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28935166/mitochondrial-nanotunnels
#11
REVIEW
Amy E Vincent, Doug M Turnbull, Veronica Eisner, György Hajnóczky, Martin Picard
Insight into the regulation of complex physiological systems emerges from understanding how biological units communicate with each other. Recent findings show that mitochondria communicate at a distance with each other via nanotunnels, thin double-membrane protrusions that connect the matrices of non-adjacent mitochondria. Emerging evidence suggest that mitochondrial nanotunnels are generated by immobilized mitochondria and transport proteins. This review integrates data from the evolutionarily conserved structure and function of intercellular projections in bacteria with recent developments in mitochondrial imaging that permit nanotunnel visualization in eukaryotes...
September 18, 2017: Trends in Cell Biology
https://www.readbyqxmd.com/read/28934201/forensic-genetics-and-genomics-much-more-than-just-a-human-affair
#12
REVIEW
Miguel Arenas, Filipe Pereira, Manuela Oliveira, Nadia Pinto, Alexandra M Lopes, Veronica Gomes, Angel Carracedo, Antonio Amorim
While traditional forensic genetics has been oriented towards using human DNA in criminal investigation and civil court cases, it currently presents a much wider application range, including not only legal situations sensu stricto but also and, increasingly often, to preemptively avoid judicial processes. Despite some difficulties, current forensic genetics is progressively incorporating the analysis of nonhuman genetic material to a greater extent. The analysis of this material-including other animal species, plants, or microorganisms-is now broadly used, providing ancillary evidence in criminalistics in cases such as animal attacks, trafficking of species, bioterrorism and biocrimes, and identification of fraudulent food composition, among many others...
September 2017: PLoS Genetics
https://www.readbyqxmd.com/read/28934169/function-oriented-molecular-design-dendrimers-as-novel-antimicrobials
#13
REVIEW
Sandra García-Gallego, Gianluigi Franci, Annarita Falanga, Rafael Gómez, Veronica Folliero, Stefania Galdiero, Francisco Javier de la Mata, Massimiliano Galdiero
In recent years innovative nanostructures are attracting increasing interest and, among them, dendrimers have shown several fields of application. Dendrimers can be designed and modified in plentiful ways giving rise to hundreds of different molecules with specific characteristics and functionalities. Biomedicine is probably the field where these molecules find extraordinary applicability, and this is probably due to their multi-valency and to the fact that several other chemicals can be coupled to them to obtain desired compounds...
September 21, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28933684/screening-of-primary-gp120-immunogens-to-formulate-the-next-generation-polyvalent-dna-prime-protein-boost-hiv-1-vaccines
#14
Shixia Wang, Te-Hui Wu, Anthony Hackett, Veronica Efros, Yan Wang, Dong Han, Aaron Wallace, Yuxin Chen, Guangnan Hu, Shuying Liu, Paul Clapham, James Arthos, David Montefiori, Shan Lu
Our previous preclinical studies and a Phase I clinical trial DP6-001 have indicated that a polyvalent Env formulation was able to elicit broadly reactive antibody responses including low titer neutralizing antibody responses against viral isolates of subtypes A, B, C and AE. In the current report, a panel of 62 gp120 immunogens were screened in a rabbit model to identify gp120 immunogens that can elicit improved binding and neutralizing antibody responses and some of them can be included in the next polyvalent formulation...
September 21, 2017: Human Vaccines & Immunotherapeutics
https://www.readbyqxmd.com/read/28933600/a-novel-acetyltransferase-p300-inhibitor-ameliorates-hypertension-associated-cardio-renal-fibrosis
#15
Rahul Rai, Suresh K Verma, David Kim, Veronica Ramirez, Elizabeth Lux, Chengjin Li, Susmita Sahoo, Lisa D Wilsbacher, Douglas E Vaughan, Susan E Quaggin, Asish K Ghosh
Hypertension-associated end-organ damage commonly leads to cardiac and renal fibrosis. As no effective anti-fibrotic therapy currently exists, the unchecked progression of fibrogenesis manifests as cardio-renal failure and early death. We have previously shown that FATp300-p300 with intrinsic factor acetyltransferase activity-is an essential epigenetic regulator of fibrogenesis, and is elevated in several fibrotic tissues. In this report, we investigate the therapeutic efficacy of a novel FATp300 inhibitor, L002, in a murine model of hypertensive cardio-renal fibrosis...
September 21, 2017: Epigenetics: Official Journal of the DNA Methylation Society
https://www.readbyqxmd.com/read/28931867/accuracy-and-reliability-of-cone-beam-computed-tomography-for-linear-and-volumetric-mandibular-condyle-measurements-a-human-cadaver-study
#16
Verónica García-Sanz, Carlos Bellot-Arcís, Virginia Hernández, Pedro Serrano-Sánchez, Juan Guarinos, Vanessa Paredes-Gallardo
The accuracy of Cone-Beam Computed Tomography (CBCT) on linear and volumetric measurements on condyles has only been assessed on dry skulls. The aim of this study was to evaluate the reliability and accuracy of linear and volumetric measurements of mandibular condyles in the presence of soft tissues using CBCT. Six embalmed cadaver heads were used. CBCT scans were taken, followed by the extraction of the condyles. The water displacement technique was used to calculate the volumes of the condyles and three linear measurements were made using a digital caliper, these measurements serving as the gold standard...
September 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28931584/use-of-a-super-child-approach-to-assess-the-vitamin-a-equivalence-of-moringa-oleifera-leaves-develop-a-compartmental-model-for-vitamin-a-kinetics-and-estimate-vitamin-a-total-body-stores-in-young-mexican-children
#17
Veronica Lopez-Teros, Jennifer Lynn Ford, Michael H Green, Guangwen Tang, Michael A Grusak, Luis Quihui-Cota, Tawanda Muzhingi, Mariela Paz-Cassini, Humberto Astiazaran-Garcia
Background: Worldwide, an estimated 250 million children <5 y old are vitamin A (VA) deficient. In Mexico, despite ongoing efforts to reduce VA deficiency, it remains an important public health problem; thus, food-based interventions that increase the availability and consumption of provitamin A-rich foods should be considered.Objective: The objectives were to assess the VA equivalence of (2)H-labeled Moringa oleifera (MO) leaves and to estimate both total body stores (TBS) of VA and plasma retinol kinetics in young Mexican children...
September 20, 2017: Journal of Nutrition
https://www.readbyqxmd.com/read/28931525/ectopic-ilt3-controls-bcr-dependent-activation-of-akt-in-b-cell-chronic-lymphocytic-leukemia
#18
Vanessa Zurli, Giuliana Wimmer, Francesca Cattaneo, Veronica Candi, Emanuele Cencini, Alessandro Gozzetti, Donatella Raspadori, Giuseppe Campoccia, Francesca Sanseviero, Monica Bocchia, Cosima Tatiana Baldari, Anna Kabanova
The high proportion of long-term non-progressors among chronic lymphocytic leukemia (CLL) patients suggests the existence of a regulatory network which restrains the proliferation of tumor B cells. The identification of molecular determinants composing such network is hence fundamental for our understanding of CLL pathogenesis. Based on our previous finding establishing a deficiency in the signaling adaptor p66Shc in CLL cells, we undertook to identify unique phenotypic traits caused by this defect. Here we show that a lack of p66Shc shapes the transcriptional profile of CLL cells and leads to an upregulation of the surface receptor ILT3, the immunoglobulin-like transcript 3 which is normally found on myeloid cells...
September 20, 2017: Blood
https://www.readbyqxmd.com/read/28930981/generation-of-prostate-cancer-cell-models-of-resistance-to-the-anti-mitotic-agent-docetaxel
#19
Lisa Mohr, Marc Carceles-Cordon, Jungreem Woo, Carlos Cordon-Cardo, Josep Domingo-Domenech, Veronica Rodriguez-Bravo
Microtubule targeting agents (MTAs) are a mainstay in the treatment of a wide range of tumors. However, acquired resistance to chemotherapeutic drugs is a common mechanism of disease progression and a prognostic-determinant feature of malignant tumors. In prostate cancer (PC), resistance to MTAs such as the taxane Docetaxel dictates treatment failure as well as progression towards lethal stages of disease that are defined by a poor prognosis and high mortality rates. Though studied for decades, the array of mechanisms contributing to acquired resistance are not completely understood, and thus pose a significant limitation to the development of new therapeutic strategies that could benefit patients in these advanced stages of disease...
September 8, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28930637/sodium-hypochlorite-and-sodium-bromide-individualized-and-stabilized-carbon-nanotubes-in-water
#20
Xuezhu Xu, Jian Zhou, Veronica Colombo, Yangyang Xin, Ran Tao, Gilles Lubineau
Aggregation is a major problem for hydrophobic carbon nanomaterials such as carbon nanotubes (CNTs) in water because it reduces the effective particle concentrations, prevents particles from entering the medium and leads to unstable electronic device performances when a colloidal solution is used. Molecular ligands such as surfactants can help the particles to disperse, but they tend to degrade the electrical properties of CNTs. Therefore, self-dispersed particles without the need for surfactant are highly desirable...
September 20, 2017: Langmuir: the ACS Journal of Surfaces and Colloids
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